Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Cách tiếp cận MCDA-DEA để xây dựng một chỉ số tổng hợp cho nước thải từ các nhà máy xử lý nước thải với việc xem xét ảnh hưởng của các sản phẩm dược phẩm và chăm sóc cá nhân (PPCPs)
Tóm tắt
Xét về tình hình nước hiện tại, việc tái sử dụng là giải pháp hiệu quả để đáp ứng nhu cầu nước và giảm áp lực lên các nguồn nước truyền thống. Tuy nhiên, các sản phẩm dược phẩm và chăm sóc cá nhân (PPCPs) trong nước thải từ các nhà máy xử lý nước thải (WWTPs) làm giảm chất lượng và tính phù hợp của chúng. Với mục tiêu xác định và theo dõi cả ảnh hưởng của PPCPs và tính phù hợp của nước thải để tái sử dụng, nghiên cứu này đề xuất phát triển một chỉ số tổng hợp (CI) liên quan đến sự hiện diện của PPCPs trong các WWTP, thông qua mô hình phân tích quyết định đa tiêu chí (MCDA) – phân tích bao phủ dữ liệu (DEA) với trọng số chung. Việc thu được một CI cho PPCPs là một phương pháp mới trong tài liệu đã công bố, cho thấy một góc nhìn mới trong quản lý PPCP và ảnh hưởng của chúng trong xử lý nước thải. Hơn nữa, nghiên cứu này đề xuất một cải tiến cho mô hình MCDA-DEA, duy trì thứ bậc ban đầu đã có cho các đơn vị phân tích. Sự phát triển của CI dựa trên thông tin về điều kiện công nghệ, môi trường, xã hội và sinh học của các WWTP. Kết quả cho thấy 4 trong số 33 WWTP được phân tích có giá trị CI tốt nhất, có nghĩa là nước thải của chúng có tác động môi trường thấp hơn. Việc phát triển một CI liên quan đến PPCPs trong các WWTP cho thấy cần có các bước tiếp theo để quản lý nước thải của các WWTP. Do đó, nhu cầu thực hiện các biện pháp phòng ngừa trong các WWTP đã được thể hiện, mặc dù việc loại bỏ PPCPs vẫn chưa phải là một phần trong luật pháp Châu Âu. Công trình này nhấn mạnh tầm quan trọng của việc xem xét PPCPs như các chất ô nhiễm ưu tiên trong quản lý nước thải và các khuôn khổ tái sử dụng, nhằm đảm bảo tác động môi trường thấp và thích ứng tái sử dụng nước thải dựa trên cách tiếp cận kinh tế tuần hoàn. Các chất ô nhiễm mới nổi (PPCPs) được sử dụng như các chỉ số chất lượng nước thải. Một chỉ số tổng hợp cho hiệu suất của PPCPs đã được phát triển thông qua mô hình MCDA-DEA. Chỉ số thu được cho phép các nhà quyết định thực hiện các hành động cụ thể để đánh giá chất lượng nước thải. Kết quả cho thấy khả năng cải thiện chất lượng nước thải thông qua việc loại bỏ PPCPs.
Từ khóa
#tái sử dụng nước #sản phẩm dược phẩm và chăm sóc cá nhân (PPCPs) #xử lý nước thải #chỉ số tổng hợp #mô hình MCDA-DEATài liệu tham khảo
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